chore(example): Create Object on Nodejs

examples/nodejs/package.json

@@ -6,7 +6,8 @@
   "scripts": {},
   "dependencies": {
     "@bnb-chain/greenfield-js-sdk": "workspace:*",
-    "@bnb-chain/greenfiled-file-handle": "workspace:*"
+    "@bnb-chain/greenfiled-file-handle": "workspace:*",
+    "mime-types": "^2.1.35"
   },
   "devDependencies": {
     "cross-env": "^7.0.3"

examples/nodejs/storage.js

@@ -1,9 +1,21 @@
+const fs = require('fs');
+const path = require('path');
+const mimeTypes = require('mime-types');
+const { getCheckSums } = require('@bnb-chain/greenfiled-file-handle');
 const { client, selectSp, generateString } = require('./client');
 const { ACCOUNT_ADDRESS, ACCOUNT_PRIVATEKEY } = require('./env');
 
+const filePath = './CHANGELOG.md';
+const bucketName = generateString(10);
+const objectName = generateString(10);
+const fileBuffer = fs.readFileSync(filePath);
+const extname = path.extname(filePath);
+const fileType = mimeTypes.lookup(extname);
+
 (async () => {
-  const bucketName = generateString(10);
   const spInfo = await selectSp();
+
+  // create bucket example:
   const createBucketTx = await client.bucket.createBucket(
     {
       bucketName: bucketName,
@@ -21,20 +33,56 @@ const { ACCOUNT_ADDRESS, ACCOUNT_PRIVATEKEY } = require('./env');
     },
   );
 
-  const simulateInfo = await createBucketTx.simulate({
+  const createBucketTxSimulateInfo = await createBucketTx.simulate({
+    denom: 'BNB',
+  });
+
+  console.log('createBucketTxSimulateInfo', createBucketTxSimulateInfo);
+
+  const createBucketTxRes = await createBucketTx.broadcast({
     denom: 'BNB',
+    gasLimit: Number(createBucketTxSimulateInfo?.gasLimit),
+    gasPrice: createBucketTxSimulateInfo?.gasPrice || '5000000000',
+    payer: ACCOUNT_ADDRESS,
+    granter: '',
+    privateKey: ACCOUNT_PRIVATEKEY,
   });
 
-  console.log('simulateInfo', simulateInfo);
+  console.log('create bucket success', createBucketTxRes);
+
+  // create object example:
+  const hashResult = await getCheckSums(fileBuffer);
+  const { contentLength, expectCheckSums } = hashResult;
+
+  const createObjectTx = await client.object.createObject(
+    {
+      bucketName: bucketName,
+      objectName: objectName,
+      creator: ACCOUNT_ADDRESS,
+      visibility: 'VISIBILITY_TYPE_PRIVATE',
+      fileType: fileType,
+      redundancyType: 'REDUNDANCY_EC_TYPE',
+      contentLength,
+      expectCheckSums: JSON.parse(expectCheckSums),
+    },
+    {
+      type: 'ECDSA',
+      privateKey: ACCOUNT_PRIVATEKEY,
+    },
+  );
+
+  const createObjectTxSimulateInfo = await createObjectTx.simulate({
+    denom: 'BNB',
+  });
 
-  const res = await createBucketTx.broadcast({
+  const createObjectTxRes = await createObjectTx.broadcast({
     denom: 'BNB',
-    gasLimit: Number(simulateInfo?.gasLimit),
-    gasPrice: simulateInfo?.gasPrice || '5000000000',
+    gasLimit: Number(createObjectTxSimulateInfo?.gasLimit),
+    gasPrice: createObjectTxSimulateInfo?.gasPrice || '5000000000',
     payer: ACCOUNT_ADDRESS,
     granter: '',
     privateKey: ACCOUNT_PRIVATEKEY,
   });
 
-  console.log('res', res);
+  console.log('create object success', createObjectTxRes);
 })();